Printing-machine.



PATENTED OCT. 16, 1906. J. WHITE. PRINTING MACHINE. APPLICATION FILED NOV. 3. 1905.

2 SHEETS-SHEET 1.

lA/Vf/{TOE PATENTED OCT 16, 1906.

J WHITE. PRINTING MACHINE.

APPLICATION FILED NOV. 3. 1005.

2 SHEETS-SHEET 2 IYTTEST fl g/ rm: NORRIS PETERS co., wnsnmcrou, n. c.

UNITED STATES PATENT OFFICE.

JOSEPH WHITE, OF BOUNDBROOK, NEW JERSEY, ASSIGNOR TO THE ALUMINUM PRESS COMPANY, OF NEW YORK, N. Y;, A CORPORA- TION OF NEW YORK.

PRINTING-MACHINE.

Specification of Letters Patent.

Patented Oct'. 16', 1906.

To all whom it may concern:

Be it known that I, J OSEPH WHITE, a citizen of the United States, residing at Boundbrook, Somerset county, State of New Jersey, (whose post-office address is Dunellen, New Jersey,) have invented certain new and useful Improvements Relating to Printing- Maohines, of which the following is a specification.

The primary object of this invention is to provide an economic arrangement ofdrivinggearing for what is known as a two-color two-revolution bed-and-cylinder press.

Referring to the drawings, Figure 1 is a side elevation of so much of a two-color tworevolution press as is required to illustrate this invention. Fig. 2 is a sectional elevation taken on the line 2 2 of Fig. 1.

The machineherein illustrated is the usua type of two-color two-revolution flat bed machine consisting of two cylinders revolving in the same direction, coacting with two forms on a reciprocating bed during the forward stroke of the bed, and rising free from the forms at the return stroke of the bed, said cylinders being c'onstantly rotating. Between these cylinders is a transfercylinder which performs the function of taking the sheet from the first cylinder when printed upon the first time and delivering it to the second cylinder in the usual manner to receive its second impression. In order that these cylinders may be driven most efficiently in unison with the coacting bed, the following trains of gearing are provided; 1 is the driving-shaft of the machine, which is supplied with the usual tight and loose pulley 2 and 3 in this case, although this drivingshaft may receive its power through any other sourceas, for instance, another gear attached to the machine or an electric motor directly attached to the shaft. This shaft in the construction shown herein has three driving-pinions (numbered 4, 5, and 6) keyed to thisshaft, which perform through intermediate gears the function of driving the cylinders and the bed in its backward and forward movements. The first impressioncylinder 7 has fast to its shaft on the outside of the frame the gear 8, which in this particular case, due to the proportion of the gear between it and the bed, is equal in pitch diameter to the impression-cylinder surface,

although under other constructions which would fall within the scope of this invention the proportion would vary, and the second impression-cylinder 9 has fast upon its shaft thegear 10. Between the driving-pinion 4 and the cylinder-gears 8 and 10 is a toothed intermediate member which admits of various forms of construction, but is preferably, as shown in the drawings, the single intermediate gear 13, driving each of them, as can be seen, in exactly the same manner and in the same direction, and between the transfercylinder gear 12 and the intermediate gear 13 is the wide-face pinion 14, which is mounted on the stud 28 and which meshes with the intermediate gear 13 and transfer-cylinder gear 12, thus causing the transfer-cylinder to be driven in the opposite direction to thatof the impression-cylinder. This transfer-cylinder gear, it is noted by Fig. 2, is laterally in a different plane than the impression-cylinder gears and does not in any way interfere with the said gears. By this arrangement of gears between the driving-gear and impression-cylinders each cylinder can be separately adjusted to an exact position and each cylinder has the least amount of points of contact with the driving-pinion.

The manner in which the bed is driven may be varied widely; but the principles of this invention will include, among others, the various types of bed-driving mechanisms known as the Miehle motions, some of which contain a rising-and-falling gear meshing with upper and lower bed-racks driven in direct mesh with a pinion on the drivingshaft, while others have a sliding gear which drives the upper and lower bed-racks, this sliding gear either being in direct mesh with a pinion on the drivingshaft or driven through the agency of a shaft which contains the gear in direct mesh with the driving-shaft pinion.

The manner in which the bed in the machine illustrated receives its constant motion backward and forward is as follows: The pinion 5, mounted on the driving-shaft 1, (which finds its bearing in the rear side frame and in the brackets 19 and 20, which are suported on the base of the machine,.) meshes with the bed-gear 24, supported on the bracket 19,. which in turn meshes with the bed-rack 15-, thus driving the bed forward during the printing stroke in the direction shown by the arrow Fig. 1. The bed-rack 18 is shown laterally out of the plane of its driving-gear 17, and the bed-rack is shown in the plane of the bed-gear 24. During the reversing of the bed for the return movement these racks are laterally shifted, so as to place the rack 18 in alinement with the gear 17 and the rack 15 out of alinement with the gear 24. As this may be accomplished in various ways and does not form part of this invention, the manner in which it is accomplished is not shown. The reverse motion is accomplished by the driving-pinion 6 meshing with the wide-face intermediate pinion 16 on the stud 30, which in turn meshes with the bed gear 17, thus giving it a reverse motion to that of 14, and when said gear is brought in contact with the bed-rack 18 it drives it during its return stroke, and as the manner in which the bed is reversed does not form part of this invention it is not illustrated, but may be of any of the usual types well known to the art.

Starting from the shaft 1 as the source of motion, it can be seen that by the arrange ment of gearing described there is the same number of contact-points in the gearing between the source of motion and each cylinder and between the source of motion and the bed when on its printing stroke, thus insurin perfect alinement of the bed with each cy inder.

It is obvious that the gear 24 maybe fastened to a shaft (instead of being revolubly mounted on its bracket) and this shaft carried through the rear frame and upon the end of which another gear is fastened, which may be driven by either the pinion 4 (which in this case would be wide-faced) or an independent pinion upon the shaft 1, and this construction is obviously mechanically equivalent to the construction shown and such variations as this and others which are mechanically equivalent to the elements shown or held to fall within the scope of the invention herein disclosed.

I claim 1. In a printing-machine having .two impression-cylinders and a reciprocating typebed, a gear-wheel on each of said cylinders, and a bed-rack on the type-bed; the combination of a driving member and a toothed intermediate member meshing with the driving member and both cylinder-gears, and ge aring between the driving member and the bedrack, whereby the cylinders and type-forms are driven in the same direction at the same surface speed.

2. In a printing-machine having two impression cylinders and a reciprocating typebed; a gear-wheel on each of said cylinders, and a bed-rack on the type-bed; the combination of a driving-shaft having two drivingpinions, a common intermediate gear between one of said dr'iving pinions and both cylinder-gears, and an intermediate gear between the other of said driving-pinions and the bed-rack, whereby the cylinders and typeforms are driven in the same direction at the same surface speed.

3. In a printing-machine having two impression-cylinders, a transfer-cylinder be tween said impression-cylinders, and a reciprocating type-bed; gear-wheels on each of said impression-cylinders and transfer-cylinder, and a bed-rack on the type-bed; the combination of a driving member, a common intermediate gear between the driving member and the impression-cylinder gears, an intermediate gear between the common inter mediate gear and the transfer-cylinder gear, and gearing between the driving member and the bed-rack, whereby the impression-cylinders and type-forms are driven in the same direction at the same surface-speed, and the transfer-cylinder is rotated in an opposite direction to the impression cylinder at the same surface speed.

4. In a printing-machine having two impression-cylinders, a transfer-cylinder between said impression-cylinders and a reciprocating type-bed; gear-wheels on each of said impression-cylinders and transfer-cylinder, and a bed-rack on the type-bed the combination of a driving-shaft with two drivingpinions fastened thereon, a common intermediate gear between one of said pinions and both of said cylinder-gears, another intermediate gear between the common intermediate gear and the transfer-cylinder, and an intermediate gear between a driving-pinion on the driving-shaft and the bed-rack, whereby the impression-cylinders and the type-forms are driven in the same direction at the same surface speed, and the transfer-cylinder is rotated in an opposite direction to the impression-cylinders at the same surface speed,

5. In a printing-machine having two impression-cylinders and a reciprocating typebed, a gear-wheel on each of said cylinders and two bed-racks on the type-bed; the combination of adriving-shaft having three drivingpinions, a common intermediate gear between one of said driving-pinions and both cylindergears an intermediate gear between the second of said driving-pinions and one of the bed-racks, whereby the cylinders and type-forms are driven in the same direction at the same surface speed, and two intermediate gears between the third drivingpinion and the second bed-rack, whereby the bed-rackis driven in its return stroke.

6. In a printing-machine having two impression-cylinders, a transfercylinder between said impression-cylinders, and a reciprocating typebed, having two bed-racks, and a driving-shaft having three driving-pinions the combination of gear-wheels on each of said impression-cylinders and transfer-cylinder; a common intermediate gear between one of said pinions and both impression-cylinder gears, another intermediate pinion between the common intermediate gear and the transfer-cylinder, an intermediate gear between the second driving-pinion and the bed-rack, whereby the impression-cylinders and type-forms are driven in thesame directi on at the same surface speed, and the trans- 1o fer-cylinder is rotated in an opposite direction to the impression-cylinders at the same surface speed, and two intermediates between the third driVing-pinion and second bed-rack, whereby the type-bed is driven in its return stroke.

In witness whereof I have hereunto set my hand in the presence of two subscribing witnesses.

JOSEPH WHITE. Witnesses:

GEO. WIsnART, P. W. HALL. 

